Income Taxes - Schedule of U.S. Federal Corporate Income Tax Rate to Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Tax Jurisdiction of Domicile [Extensible Enumeration]									UNITED STATES
Expense
Pretax income from continuing operations	$ 12,442	$ 11,079	$ 9,853	$ 8,565	$ 8,680	$ 9,162	$ 7,470	$ 7,272	$ 41,939	$ 32,584	$ 35,702
Expected tax expense at statutory rate									8,807	6,843	7,498
Tax exempt income									(2,417)	(2,340)	(2,224)
Nondeductible interest expense									877	940	743
Other nontaxable income and nondeductible expenses									32	29	24
State and local taxes, net of federal tax benefit									478	421	421
Historical tax credits									(1,252)	(915)	(92)
Low Income Housing tax credits									(275)	(313)	(350)
Other tax credits									(27)	(27)	(27)
Amortization of tax credit investments									1,241	1,002	268
Other									81	(101)	(77)
Foreign tax effects									0	0	0
Effect of changes in tax laws or rates enacted in the current period									0	0	0
Effect of cross-border tax laws									0	0	0
Changes in valuation allowances									0	0	0
Changes in unrecognized tax benefits									0	0	0
Reported income tax expense	$ 2,270	$ 1,997	$ 1,790	$ 1,488	$ 1,398	$ 1,591	$ 1,299	$ 1,251	$ 7,545	$ 5,539	$ 6,184
Rate
Expected tax expense at statutory rate									21.00%	21.00%	21.00%
Tax exempt income									(5.76%)	(7.18%)	(6.23%)
Nondeductible interest expense									0.0209	0.0288	0.0208
Other nontaxable income and nondeductible expenses									0.08%	0.09%	0.07%
State and local taxes, net of federal tax benefit									1.14%	1.29%	1.18%
Historical tax credits									(2.99%)	(2.81%)	(0.26%)
Low Income Housing tax credits									(0.66%)	(0.96%)	(0.98%)
Other tax credits									(0.06%)	(0.08%)	(0.08%)
Amortization of tax credit investments									2.96%	3.08%	0.75%
Other									0.19%	(0.31%)	(0.22%)
Foreign tax effects									0.00%	0.00%	0.00%
Effect of changes in tax laws or rates enacted in the current period									0.00%	0.00%	0.00%
Effect of cross-border tax laws									0.00%	0.00%	0.00%
Changes in valuation allowances									0.00%	0.00%	0.00%
Changes in unrecognized tax benefits									0.00%	0.00%	0.00%
Effective income tax rate									17.99%	17.00%	17.32%